Improvement in slide-bolts



UNITED STATES PATENT OFFICE.

JOHN DECKER, OF SPARTA, NEW JERSEY, ASSIGNOR TO HIMSELF AND CHAS. W.WARDWELL, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN SLIDE-BOLTS.

Specification forming part of Letters Patent No. 57,249, dated August14, 1866.

To all whom it may concern.-

Beitknown that I, J oHN DECKER, of Sparta, in the county of Sussex andState of New Jersey, have invented a new and Improved Slide- Bolt 5 andl do hereby declare that the following is a full, clear, and exactdescription thereof, which will enable those skilled in the art to makeand use the same, reference bein g had to the accompanying drawings,forming part of this specification, in which- Figure l is a longitudinalvertical section of my invention taken in the line .x Fig. 2; Fig. 2, ahorizontal section ofthe saine taken in the line y y, Fig. 1.

Similar letters of reference indicate corresponding parts.

This invention consists in applying a series of tumbler-s to aslide-bolt in such a manner that an ordinary bolt may be rendered assecurc a fastening as an ordinary tumbler-lock, and without materiallyaugmenting Vthe cost of the manufacture of the slide-bolt.

A represents the case in which the bolt B slides. This case may be otlcast or wrought meta-l. Thei'ormer will probably be most generally used.The bolt B is considerably shorter than the case, and it is providedwith a thumbpiece, u, which projects through an oblong slot, b, in thecase for the purpose of allowing the bolt to be readily inoved-shovcdinto and out'i'rom the keeper C. (See Fig. l.)

Within the case A there are placed a series of tumblers, D, which arecomposed of straight bars, each of which has a deep notch, c, made init, and these notches, when brought in line with each other by adjusting the tumblers, receive a projection, d, at the inner side of thebolt, and admit of the bolt being moved in the case, the tumblers movingwith it. When, however, the notches o of all the tumbler-s are not inline the bolt cannot be moved, as a shoulder, e, at its outer surfacewill be in contact with the rear of the slot b, and the tumblers aremoved so as to throw the notches o out of line when the outer end of thebolt is shoved into the keeper C; and hence, to draw back the bolt thetumblers D require to be adjusted so as to bring the notches c in linewith each other and admit of the bolt being pressed inward, so that theshoulder e will clear the rear end ot' the slot b. To eect this readilya key, E, (shown in red outline in Fig. 2,) may be used, or a personmaj7 set the tuniblers in the proper position by'. the aid of notches f,made in the rear parts of the tuinblers, the relative position ot' theseveral tumblers being obtained by counting the notches when theprojection d ot' the bolt is in the notches c. Changes may be effectedby this` arrange-ment by shifting the tumblers D, changing theirposition relatively with each other, so that differentones will be sidebyside, and also by having notches o made in both edges, so that theymay be reversed, the notches in one edge not corresponding with those inthe other edge.

The arrangement is extremely simple and efcient, and may be manufacturedat a small cost, not materially exceeding that of the ordinaryslide-bolt. y

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The bolt B, fitted in a case, A, and provided with aprojection, d, at its rear side, and with a shoulder or stop, e, at itsouter side, in combination with the tumblers D, notched as shown, toreceive the projection d, and the oblong slot b in the case A, allarranged to operate substantially in the manner as and for the purposeset forth.

JOHN DECKER.

Witnesses R. OLEARY, D. Cons, Jr.

